"The main objective of the Let'S Move project was to promote sustainable, healthy and safe mobility in primary schools participating in the project. Likewise, other objectives pursued by the project were to change the perception of the school community about transport in the city, promoting changes in daily transportation habits to schools, improving the quality of life of students, through improvement of their health, safety and social relations, encourage the use of foreign languages and the use of ICT in schools through the eTwinning platform and integrate project activities in the different subjects of the curriculum.In the Let'S Move project, initially 15 schools participated, with a total of 6,463 students from Spain, France, Poland and Croatia. As a result of the withdrawal of the French partner by judicial liquidation in May 2017, three French schools withdrew from the project, leaving only one French school in the last year of the project. Thus, the project was completed with the participation of 12 educational centers and 5,127 students. If we take into account the entire educational community (students, teachers, fathers and mothers) and the town halls (political authorities, municipal technicians and police) the project has involved more than 15,000 peopleIn this way we can conclude that the benefits and impacts achieved during the project on the participants and the organizations involved have been:-Increase of sustainable trips to school by around 15% by changing travel by car to trips on foot and by bicycle. Indirect increase of the rest of the daily trips in sustainable mode.-Reduction of transport energy consumption to school by around 15%.-Reduction of the amount of CO2 emissions due to school trips by around 15%.-Increase the air quality of the cities involved.-Help fight against childhood obesity and sedentary life. Children health improvement by exercising daily at around 15%.-Change the perception of people about the autonomy of children, and increase awareness about walking and cycling as modes of transport.-Increase in the road safety of the city, especially in the school environment, reducing the risk of accidents and increasing the perception of safety of citizens.-Increased security at the entrance of the school, reducing the situations of danger.-Introduction of long-term measures in the urban design of the city that favor sustainable displacements.-Revitalization of urban space.-Establish a common strategy between transportation and health related to the introduction of physical activities in the daily routine.-Education in health, sustainability and road safety. Awareness has been raised about walking and cycling as a means of transport in the cities of the European Union, especially when going to schools.-Increase in the level of digital competence in schools, through activities and the etwinning platform.-Increase of foreign language skills of students, translation of some documents in English.-Improve the communication skills of students.-Increase the level of geometry, geography and map reading in the students' competences.-Active participation of students in society.- Greater understanding and capacity to respond to social, linguistic and cultural diversity.-Replication of activities, campaigns and good practices on sustainable mobility and healthy habits in other schools (the Let'S Move Project has been implemented in 7 more schools in Sueca and 9 schools in Algemesí (Spain).For achieving these objectives, the following activities will be carried out during the project:-Management activities (project partners meetings, Advisory Committees meetings in each region).-Design and implementation of 45 school safety routes.-Implementation of security measures such as painting pedestrian crossings, increasing the visibility of crossings to increase the safety of school routes. Reduction of architectural barriers in the cities.- Campaigns, games and activities to promote healthy, safe and sustainable mobility.- Implementation of e-Walking bus using new technologies.- E-Twinning activities connecting the participant schools from different countries.- Dissemination activities for promoting the project and its replicability in other schools across EU countries.-Production of a ""Methodological Guide on Health, Safety and Sustainable Mobility in School Centers"" in Spanish, English, French, Croatian and Polish, with the purpose of helping to implement this type of projects in other schools and municipalities.-Conference ""Challenges for a healthy, safe and sustainable mobility in the schools"" in which around 100 people participated."